Global Patent Index - EP 4349578 A1

EP 4349578 A1 20240410 - METHOD OF GENERATING A TOPOGRAPHIC STRUCTURE OR A PLURALITY OF TOPOGRAPHIC STRUCTURES AND PLASTIC SUBSTRATE

Title (en)

METHOD OF GENERATING A TOPOGRAPHIC STRUCTURE OR A PLURALITY OF TOPOGRAPHIC STRUCTURES AND PLASTIC SUBSTRATE

Title (de)

VERFAHREN ZUR ERZEUGUNG EINER TOPOGRAFISCHEN STRUKTUR ODER MEHRERER TOPOGRAFISCHER STRUKTUREN UND KUNSTSTOFFSUBSTRAT

Title (fr)

PROCÉDÉ DE GÉNÉRATION D'UNE STRUCTURE TOPOGRAPHIQUE OU D'UNE PLURALITÉ DE STRUCTURES TOPOGRAPHIQUES ET SUBSTRAT EN PLASTIQUE

Publication

EP 4349578 A1 20240410 (EN)

Application

EP 22200077 A 20221006

Priority

EP 22200077 A 20221006

Abstract (en)

The invention is directed to a method of generating a topographic structure or a plurality of topographic structures developed out of or within a surface of an uncoated or a plastic substrate coated with a hard coat comprising the following steps: (a) providing a plastic substrate based on a plastic material having a front surface and a back surface, said plastic substrate being an uncoated plastic substrate or a plastic substrate coated with a hard coat, said hard coat covering at least one of said front surface and back surface; (b) depositing on at least one of said front surface and back surface droplet of a structuring ink; (c) irradiating said droplets of structuring ink deposited on at least one of said front surface and back surface; (d) removing said deposited droplets after having been irradiated and providing a topographic structure or a plurality of topographic structures developed out of or within said at least one of said front surface and back surface of said uncoated plastic substrate or plastic substrate coated with a hard coat. The invention also directed to a plastic substrate based on a plastic material having a front surface and a back surface, said plastic substrate being an uncoated plastic substrate or a plastic substrate coated with a hard coat, said hard coat covering at least one of said front surface and back surface, wherein a topographic structure or plurality of topographic structures is/are developed out of or within a surface of said plastic material of the uncoated plastic substrate or developed out of or within said hard coat of said coated plastic substrate.

IPC 8 full level

B29D 11/00 (2006.01)

CPC (source: EP)

B29D 11/00009 (2013.01); B29D 11/00326 (2013.01); B29D 11/00432 (2013.01); B29D 11/00865 (2013.01)

Citation (applicant)

Citation (search report)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA

Designated validation state (EPC)

KH MA MD TN

DOCDB simple family (publication)

EP 4349578 A1 20240410; WO 2024074597 A1 20240411

DOCDB simple family (application)

EP 22200077 A 20221006; EP 2023077535 W 20231005